| YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1948 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 646.87 | a | 473.50 | 70.00 | 0.50 | 0.00 | 1190.87 | |||||
| 1949 | 0.00 | 0.00 | 0.00 | a | 116.00 | 279.00 | 458.50 | 763.50 | 650.00 | 344.50 | 76.00 | 8.50 | 0.00 | 2696.00 | ||||||||||||
| 1950 | 0.00 | 0.00 | 2.50 | 78.50 | 177.50 | 603.00 | 632.50 | 658.50 | 392.00 | 205.24 | b | 3.00 | 0.00 | 2752.74 | ||||||||||||
| 1951 | 0.00 | 0.00 | a | 4.00 | 45.00 | 269.00 | 381.00 | 702.50 | 664.50 | 309.50 | 82.50 | 0.00 | 0.00 | 2458.00 | ||||||||||||
| 1952 | 0.00 | 0.00 | a | 0.50 | 107.00 | 287.00 | 712.00 | 757.50 | 709.50 | 452.00 | 95.00 | 3.00 | 0.00 | 3123.50 | ||||||||||||
| 1953 | 0.00 | 0.00 | 16.50 | 55.00 | 224.00 | 619.50 | 778.50 | 600.00 | 432.00 | 156.50 | 5.00 | 0.00 | 2887.00 | |||||||||||||
| 1954 | 0.00 | 0.50 | 7.00 | 151.50 | 265.50 | 590.00 | 841.50 | 694.50 | 447.00 | 105.00 | 0.00 | 0.00 | 3102.50 | |||||||||||||
| 1955 | 0.00 | 0.00 | 3.50 | 117.00 | 305.00 | 442.50 | 828.50 | 771.50 | 411.50 | 136.00 | 0.00 | 0.00 | 3015.50 | |||||||||||||
| 1956 | 0.00 | 0.00 | 20.00 | 50.00 | 336.50 | 717.00 | 695.50 | 599.00 | 403.00 | 149.00 | 0.00 | 0.00 | 2970.00 | |||||||||||||
| 1957 | 0.00 | 0.00 | 1.50 | 41.50 | 198.00 | 479.00 | 743.00 | 673.00 | 285.00 | 114.50 | 4.00 | 0.00 | 2539.50 | |||||||||||||
| 1958 | 0.00 | 3.00 | 0.00 | 45.00 | 395.50 | 551.00 | 631.00 | 728.00 | 433.50 | 140.00 | 0.50 | 0.00 | 2927.50 | |||||||||||||
| 1959 | 0.00 | 0.00 | 0.00 | b | 75.00 | 272.50 | 663.50 | 716.50 | 747.50 | 360.50 | 61.50 | 0.00 | 0.00 | 2897.00 | ||||||||||||
| 1960 | 0.00 | 0.00 | 28.50 | 121.00 | 268.50 | 560.00 | 716.00 | 690.50 | 404.50 | 122.50 | 3.00 | 0.00 | 2914.50 | |||||||||||||
| 1961 | 0.00 | 0.00 | 6.50 | 55.50 | 223.00 | 544.50 | 698.00 | 687.50 | 245.50 | 75.50 | 0.00 | 0.00 | 2536.00 | |||||||||||||
| 1962 | 0.00 | 9.50 | 3.00 | 126.50 | 319.00 | 489.00 | 704.00 | 662.50 | 378.00 | 129.50 | 7.00 | 0.00 | 2828.00 | |||||||||||||
| 1963 | 0.00 | 0.00 | 35.00 | 94.50 | 406.50 | 628.50 | 836.00 | 702.00 | 511.50 | 266.50 | 1.00 | 0.00 | 3481.50 | |||||||||||||
| 1964 | 0.00 | 0.00 | 0.00 | 64.00 | 316.00 | 452.00 | 849.50 | 635.50 | 383.00 | 116.00 | 10.50 | 0.50 | 2827.00 | |||||||||||||
| 1965 | 0.00 | 0.00 | 0.00 | 92.00 | 273.00 | 483.50 | 742.50 | 604.50 | 221.50 | 159.00 | 8.50 | 0.00 | 2584.50 | |||||||||||||
| 1966 | 0.00 | 0.00 | 30.00 | 57.00 | 341.00 | 529.00 | 868.50 | 628.00 | 425.50 | 98.00 | 0.00 | 0.00 | 2977.00 | |||||||||||||
| 1967 | 0.00 | 0.00 | 37.00 | 106.50 | 192.50 | 424.00 | 699.50 | 600.50 | 329.00 | 124.50 | 3.50 | 0.00 | 2517.00 | |||||||||||||
| 1968 | 0.00 | 0.00 | 15.50 | 33.50 | 170.00 | 605.00 | 743.00 | 594.00 | 346.00 | 122.50 | 0.50 | 1.00 | 2631.00 | |||||||||||||
| 1969 | 0.00 | 0.00 | 0.00 | 140.50 | 347.00 | 414.00 | 795.00 | 798.50 | 481.50 | 55.00 | 0.00 | 0.00 | 3031.50 | |||||||||||||
| 1970 | 0.00 | 0.00 | 1.00 | 36.50 | 381.50 | 529.00 | 814.50 | 801.00 | 326.00 | 64.50 | 2.00 | 0.00 | 2956.00 | |||||||||||||
| 1971 | 0.00 | 0.00 | 22.00 | 88.50 | 202.50 | 614.00 | 692.00 | 741.50 | 293.00 | 75.50 | 4.00 | 0.00 | 2733.00 | |||||||||||||
| 1972 | 0.00 | a | 1.50 | 31.50 | 87.00 | 264.50 | 638.00 | 671.00 | 698.50 | 365.00 | 144.50 | 0.00 | 0.00 | 2901.50 | ||||||||||||
| 1973 | 0.00 | 0.00 | 0.00 | 36.00 | 234.50 | 584.00 | 714.50 | 778.50 | 335.50 | 173.00 | 5.00 | 0.00 | 2861.00 | |||||||||||||
| 1974 | 0.00 | 0.00 | 32.00 | 96.50 | 385.50 | 583.00 | 834.50 | 623.00 | 297.00 | 160.00 | 0.00 | 0.00 | 3011.50 | |||||||||||||
| 1975 | 0.00 | 0.00 | 10.50 | 107.00 | 223.50 | 512.00 | 822.00 | 706.50 | 349.50 | 163.00 | 11.50 | 0.00 | 2905.50 | |||||||||||||
| 1976 | 0.00 | 3.50 | 22.00 | 78.00 | 255.50 | 554.00 | 824.50 | 666.00 | 396.00 | 103.50 | 2.50 | 0.00 | 2905.50 | |||||||||||||
| 1977 | 0.00 | 0.00 | 5.00 | 137.50 | 386.50 | 696.00 | 823.00 | 679.50 | 512.00 | 115.00 | 3.50 | 2.00 | 3360.00 | |||||||||||||
| 1978 | 0.00 | 0.00 | 34.00 | 99.50 | 277.00 | 579.00 | 827.50 | 628.50 | 488.50 | 119.00 | 16.00 | 0.00 | 3069.00 | |||||||||||||
| 1979 | 0.00 | 0.00 | 3.50 | 122.50 | 250.00 | 511.00 | 777.00 | 620.50 | 494.50 | 206.50 | 0.00 | 0.00 | 2985.50 | |||||||||||||
| 1980 | 0.00 | 0.00 | 0.00 | 89.00 | 221.13 | a | 659.00 | 870.07 | a | 714.00 | 447.00 | 137.00 | 24.00 | 0.00 | 3161.20 | |||||||||||
| 1981 | 0.00 | 1.00 | 7.23 | a | 211.00 | 235.00 | 629.00 | 770.00 | 645.50 | 509.50 | 125.50 | 15.00 | 0.00 | 3148.73 | ||||||||||||
| 1982 | 0.50 | 3.50 | 7.00 | 78.00 | 255.00 | 439.50 | 779.00 | 774.50 | 408.50 | 82.00 | 0.00 | 0.00 | 2827.50 | |||||||||||||
| 1983 | 0.00 | 0.00 | 8.50 | 56.50 | 190.50 | 435.50 | 797.50 | 884.00 | 520.50 | 140.50 | 31.00 | 0.00 | a | 3064.50 | ||||||||||||
| 1984 | 0.00 | 0.00 | 5.00 | 16.50 | 371.50 | 551.50 | 828.00 | 799.00 | 410.00 | 100.50 | 6.00 | 0.00 | 3088.00 | |||||||||||||
| 1985 | 0.00 | 0.00 | 24.00 | 132.93 | a | 374.50 | 536.50 | 771.50 | 695.00 | 371.00 | 46.00 | 1.00 | 0.00 | 2952.43 | ||||||||||||
| 1986 | 0.00 | a | 2.50 | 43.00 | 107.50 | 240.00 | 625.00 | 784.50 | 689.00 | 333.00 | 57.50 | 0.00 | 0.00 | 2882.00 | ||||||||||||
| 1987 | 0.00 | 0.00 | 3.00 | 153.00 | 344.00 | 626.00 | 779.50 | 674.00 | 384.50 | 121.00 | 14.00 | 0.00 | 3099.00 | |||||||||||||
| 1988 | 0.00 | 0.00 | 19.00 | 89.00 | 342.50 | 704.50 | 779.50 | 779.00 | 389.00 | 135.50 | 14.00 | 0.00 | 3252.00 | |||||||||||||
| 1989 | 0.00 | 0.00 | 53.50 | 155.00 | 333.50 | 476.00 | 848.00 | 686.50 | 402.50 | 156.50 | 16.50 | 0.00 | 3128.00 | |||||||||||||
| 1990 | 0.00 | 0.00 | 5.50 | 107.00 | 230.50 | 673.00 | 691.50 | 671.50 | 533.00 | 133.00 | 14.50 | 0.00 | 3059.50 | |||||||||||||
| 1991 | 0.00 | 0.00 | 15.00 | 59.00 | 344.50 | 637.50 | 755.00 | 701.00 | 436.50 | 170.50 | 3.00 | 0.00 | 3122.00 | |||||||||||||
| 1992 | 0.00 | 0.00 | 10.50 | 158.00 | 366.00 | 498.50 | 669.50 | 587.50 | 462.50 | 165.50 | 0.00 | 0.00 | 2918.00 | |||||||||||||
| 1993 | 0.00 | 0.00 | 22.00 | 62.00 | 352.00 | 546.50 | 730.50 | 660.00 | 322.50 | 136.00 | 0.00 | b | 0.00 | z | 2831.50 | |||||||||||
| 1994 | 0.00 | z | 0.00 | 12.50 | 113.50 | 373.00 | 626.00 | 645.83 | a | 690.50 | 397.76 | a | 79.00 | g | 0.50 | 0.00 | 2859.59 | |||||||||
| 1995 | 0.00 | 1.50 | 18.00 | 26.00 | 106.43 | a | 439.50 | 447.50 | j | 0.00 | z | 0.00 | z | 0.00 | z | 7.50 | 0.00 | 598.93 | ||||||||
| 1996 | 0.00 | 0.50 | 16.50 | 106.50 | 303.50 | 661.00 | 792.50 | 764.50 | 425.50 | 197.00 | 4.00 | 0.00 | 3271.50 | |||||||||||||
| 1997 | 2.50 | 0.00 | 26.00 | 67.50 | 288.50 | 639.00 | 835.50 | 716.50 | 513.00 | 174.00 | 0.00 | z | 0.00 | 3262.50 | ||||||||||||
| 1998 | 0.00 | 1.00 | 39.00 | 50.00 | 400.00 | 501.00 | 854.50 | 762.00 | 631.50 | 108.50 | 9.00 | 0.50 | 3357.00 | |||||||||||||
| 1999 | 0.00 | 0.50 | 29.00 | 66.50 | 282.00 | 595.50 | 915.00 | 779.00 | 379.00 | 151.00 | 36.00 | 0.00 | 3233.50 | |||||||||||||
| 2000 | 0.00 | 0.00 | 8.50 | 153.00 | 404.00 | 621.50 | 925.00 | 869.50 | 491.00 | 150.00 | 0.00 | 0.00 | 3622.50 | |||||||||||||
| 2001 | 0.00 | 0.00 | 7.50 | 127.50 | 333.00 | 618.00 | 964.50 | 781.50 | 533.50 | 135.50 | 19.00 | 0.00 | 3520.00 | |||||||||||||
| 2002 | 0.00 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | ||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.06 | 0.54 | 14.20 | 91.44 | 290.91 | 563.89 | 775.57 | 698.37 | 408.08 | 127.07 | 6.00 | 0.08 | 2981.49 | |||||||||||||
| S.D. | 0.35 | 1.53 | 13.57 | 40.94 | 71.08 | 85.86 | 74.75 | 69.35 | 81.02 | 43.57 | 8.11 | 0.32 | 255.97 | |||||||||||||
| SKEW | 6.70 | 4.27 | 0.87 | 0.41 | -0.21 | -0.20 | 0.13 | 0.56 | 0.14 | 0.46 | 1.85 | 4.95 | 0.18 | |||||||||||||
| MAX | 2.50 | 9.50 | 53.50 | 211.00 | 406.50 | 717.00 | 964.50 | 884.00 | 631.50 | 266.50 | 36.00 | 2.00 | 3622.50 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 16.50 | 106.43 | 381.00 | 631.00 | 587.50 | 221.50 | 46.00 | 0.00 | 0.00 | 2458.00 | |||||||||||||
| NO YRS | 53 | 53 | 53 | 53 | 53 | 53 | 52 | 53 | 53 | 52 | 53 | 53 | 49 | |||||||||||||